Nozzle for shoe channel cementing machines



Nov; 9, 1937. w. MacKE NZIE 2,098,347

NOZZLE FOR SHOE CHANNEL CEMENTING MACHINES Filed Oct. l, 1935 2 Sheets-Sheet l Nov.v9, 1937. w. L. MacKENZIE 2,098,347

NOZZLE FOR SHOE CHANNEL CEMENT ING MACHINES Filed Oct. 1, 1935 2 Sheets-Sheet 2 Patented Nov. 9, 193'? caries stares assist? PATENT ossics NOZZLE FOR SHOE CHANNEL CEMENTIN MACHINES V Application October 1,

1935, Serial No. 43,064

In Great Britain September 125, 1935 25 Claims.

This invention relates to nozzles for machines for applying cement to the channels of shoe soles after the cut-seam has been formed, thereby to attach the channel flap to the sole. The invention is herein illustrated as embodied in a. machine of the extrusion type.

It is well understood in the manufacture of shoes that a seam for attaching'the cutsole may be formed at the bottom of a channel cut in the sole and that after seam has been formed the channel flap may be cemented tothe sole to hide the seam. Prior to the formation of the scam the channel flap lifted to facilitate the sewing operation, this usually being done while the sole is in temper, and as a result the flap is wrinkled transversely of its length, especially around the toe end of the sole. When the time comes for the application of cement to the channel, specifically to the channel base and the in- 20 side of the channel the flap may be dry and as a result quite stifi and hard. That being the case the under surface of the flap provides a wrinkled surface. Obviously, the contour and outline of the sole are both irregular. Coating 1 shoe channels has commonly been performed by means of a rotary brush. With the rubber cements ordinarily employed this sort of an apparatus is very successful. However, if "the ma chine is to be used with cements of the pyroxylin type, or the polymerized chlcroprene type, one form of whichis commonly known as Neoprene, then it is essential to avoid soiling the outside of the shoe because of the difficulty in removing such cements from the shoe upper, for example. It is, furthermore, even more essential that exactly the desired quantity should be applied in order that there may be no squeeze-out when the channel flap is pressed into place.

Accordingly an important object of the "invention is to provide an improved nozzle for a channel cementing machine of the extrusion type by means of whi n th cement may be applied expeditiously just the desired quantities and withoutdangcr of soiling the adjacent parts o'f .15 the shoe.

face transverse to the length of the channel in which is the outlet opening of a passage leading Cal through the nozzle. Cooperating with this end face to form lateral passages extending heightwise of the channel is a cover plate or deflector, a portion of which is brought into cement-tight engagement with the end face of the nozzle, and the remainder of which is spaced from the end face by reason of a cut-away portion which is illustrated as formed in the cover plate, thus providing a shoulder which determines the end of each of the lateral passages.

Still another feature of the invention resides in a novel construction greatly facilitating the even distribution of cement through the two lateral passageswhich deliver. cement to the flap and the channel bed, by equalizing the frictional resistance 'ofthe .outfiowing cement. To this end, the end face of the nozzle in the illustrated construction is recessed, leaving marginal portions of uniform Width adjacent to the edges of the end face.

When applying :cement'of the polymerized chloroprene type there is a tendency for the cement to be repelled 'by the leather. This is overcome, in accordance with still another feature of the invention, by the provision of duplicate sets of lateral passages bymeans of a pair or" superposed cover' plates, the intermediate one of which is apertured topr'ovide communication between the two sets of passages. As a result of this construction the cement extruded through the first set of passages is effective to wet the leather and this greatly facilitates the application thereon of a coating ofcement of the desired thickness.

Other features of the invention relating to the structure of the machine are not'clairned herein since they formthe subject matter of a divisional application Serial No. 111,453, filed Nov. 18, 1936.

These and other features of the invention will be described-fin the following specification taken in connection with the accompanying drawings, in'which Fig. 1 is an angular view of the nozzle and associated operating tools, showing the presentation of a piece of work to the machine;

Fig. 2 is an angular view on a much larger scale of a nozzle, with a cover plate removed;

Fig.3 is a similar View of a modified construction in which two plates are em loyed;

Fig. 4 is a side elevation of the nozzle'shownin Fig. 2, with the cover. plate-inposition;

Fig. 5 is a side elevation of the nozzle shown in Fig. 3 with the plates in position;

Fig.6 shows a modified form of the-nozzle of that shown in Figs. B and 'HWhereparts similar to those shown J in- Fig Z haVe -been givenrsimilar numerals to which 1000 has been added. This nozzle diifers from thatshown in Eig. 2 in having an inner or back lateral surfacewhich is curved inwardly to form ai'concaveportion or Iyalley terminating in the curved :edgef220 zwhic'h willlbe close to the shape:of thel channelibed aroundi the forepart of the shoe an'd will approxima'tefithat found in the shanksofi'thesshoe. 'with lthislcon- 'structiongthe cover plate M 80 is alsoiprovided with a pointed :end having a curved sedge 4222.

' It will be noted that the-shoulder -'l ISBin Ithe :opening 2% opposite the outlet 7 endfiof z-the apas- I e0 sage I 90 (Fig; 8) so that iaaportion of'ithe cement cover plate provided ?for 1this':sty-le Io'f' nozzle iis not exactly 'paralleltt'o the shoulder H 98 'but deviates from thatirelation infiaccordance with the need for "providing .outle't 'passages which 'will :coact-with' the widths "of the channelfiapan'd the channel 'bed. 7

a In constructing 1' nozzles 2 of the type shown in Fig. '12, it is common to do some "hand filing where theigro'ove' fzlz "joins the: elliptical outlet :opening :192 and sometimes :this is'donei'carelessly, bringing the. opening. nearer toi'oneisidesedge than'ithe other. This. renders unequal "the frictional vire- :sistance ofiere'd to the cementsiflowingi to:the'itwo sides and results inta somewhat uneven distribu- 'tion of cementrupon theitwo'tsides of the-ichannel. It is "avoided by forming a recess 224 (F igs 3 and 6) in the end' faceiof'ithe anozzlewhic'h' is separated .from the sedge-io'f zthe' nozzle 'byl-fa :led'ge 5226 of unifcrm'widththus insuring ran even 'ldistribution of :cement. In'theform" shown inFig. i6, this recessi-is joinedfatoitheitip of athefnozzle by a groove .228 corresponding :to -the groove 2112 fin Nhentthe znozzle .is to the employed :f orfcements of the polymei'izedchloroprene type, :one formlof 1 which is marketed under the name Neoprene, thenia nozzle construction 'such'sas zthat shownrin ;l ligs. 3 and 5 mayi be'aadvantageouslyemployed videcl with a shoulder 2'42 corresponding'to-tthe shoulder M6 and, when positioned in cementtightrelaticn'to the end 'faceal88, 'forms'zzaztransa f verse slot 249 terminating in lateral ipass'ages through which the cementis:extruded?upon'the channel flap and the "channel :bed. uThisi-intermediate plate is also provided with "an elongated passes directly "to the slot :25] '(Figs. :5 and a8) rbetween the lower portion -of the :intermediate plate 230 and theiface'of the -:outer :plate 232. This slot is limited Tby a shoulder 246 upon the forward face of the plate 230. IThu's,'-'two slots are formed providing= twoilateral passages upon each face of'the noz'zlathese beingsep'arat'ed by the thin lower end 248:ofthe intermediateplate 23%. The edges of the lower endlflt' are serrated at 2533 thereby to .providelga sort "of spreading action for the cement which is delivered -to the Work from the slot 249; The generally triangular lower end 248 of the intermediate plate is slightly smaller than the corresponding portion of the nozzle, while the outlineof the lower end 252 of thecover p'latef2-32 is evensm'aller and is rounded on theouter edges. This', together with the opportunity 'for slight lateral displacement of the lower ends of the two cover plates with respect to the-nozzle, reduces any interference between the nozzle and the shoe to a minimum as the nozzle treats sharply curved portions of the channel, The*cement'extruded through the first slot 25.9

--is effective to wet'the surface of the leather of the c'hannel fiap and channel bed-while that extruded through the second slot -25l.is enabled therebyto stick even more readily tol these already coated :surfa'ces, and *to beapplied' in; uniform and predeterminedquantities :Having thus described my invention, what I claim as new and desire tosec'ure by Letters Patent; of thegUni-tedStates is:

.11. .In, a {channel cementing machine, }an -ex- Etru'ding nozzlehaving a tapered end tofacilitate its insertion "in"the-=channel of a. shoe and past :which the shoe is moved to "coat the linear extent 0f *the channel, 'said n'ozz'le being also tapered toward that side which is leading with respectto'the direction of movement ofthe work :andbeing provided with an outlet passage termi- :.nating'approximately at the apex of the tapered 'portion nthe leading side of the nozzle and be ring alsoprov'ided with lateral. slots to the rear of fisaid passage-and extending from the apex of the nozzle up' 'the 'sides of the nozzle tofacilitate the application of cement to the bed and the flap of the channel. 7 i

:2. In a channel cementing machine, a tapered nozzlehaving'a face provided with a recess, the

edgeso'fwhich are substantially equidistantfrom the sides-ofthe nozzle, thus' forming lateral ledges of subs'tantiall-y uniform width, an outlet passage f' terminating within said recess, and a' cover mem-' ber overlying said-recessedface and spaced from the ledges fthereb'y toprovide lateralpassages throug-hwhich cement will be extruded in equal '-volun e's. Y

I lna channel cementing machine, a tapered 'ar-iozzle for insertion'in a shoe channel having a' bed anda fiapysaidnozzle having a face provided with -alarecess, an=outletpassage terminating within saidrecess, themargin-of'said recess at substantially the apex of the nozzle being'provided with afgroove, providing an enlarged passage for -f-the-cle1ivery-of cement to the very root of the -channel' anda cover "member overlying said recessed face-and spaced from the unrecessed portion-o'f the face'of the'n'czzle, thereby to provide later2tlpassages through which cement will be extrudecl"in equalvolumes on the bed and flap of the ch'annel.

4. In-a channel cementing machine, a nozzle having an "end portion adapted to be inserted in the' channel' of ar'shOe-and past Whichthe shoe is moved tocoat the linear extent of the'channel,

' said nozzle-being tapered axially and toward that face of-the nozzlelwhich' is leading with respect to the directionof movement of the shoe, thereby providing anied ge'on this leading face, said nozzle "having -an-'endiface"an outlet-passage througfh-saicl nozzle terminating in said end 'face, said'end face being 'al-soprovided'. with a groove 'extending from the outiet of said passage to the apex o'f the nozz'le, an 'auxiliary passage extending t from said outlet passage to an opening'in the ieoiding edge, and a cover member'overlying the passage's'for' c'oati'ng the flap and the bed-of the, enema; I J I 5. I-n a -'channl i oementingiz-machine, a -nczzle end face 'and spaced therefromito provide lateral sages heightwise of the channel, said deflector being loosely mounted to provide for lateral twisting of the deflector by pressure of the work Without substantially changing the size of the outlet lateral passages. I

19. In a channel cementing machine, a tapered nozzle having an end face transverse to the length of the nozzle and provided with an outlet passage terminating in said face, and a deflector secured to said nozzle to overlie said face and to be spaced therefrom to provide lateral passages heightwise of the channel, said deflector being loosely mounted to provide for lateral twisting of the deflector by pressure of the work without substantially changing the size of the outlet lateral passages, said end face and the inner side of said deflector being provided with coacting shoulders, thereby to limit the twisting movement of the deflector.

20. In a channel cementing machine, an extruding nozzle having an end portion adapted to be inserted in the channel of a shoe and past which the shoe is moved to coat the linear extent of the channel, said nozzle being tapered on its leading side to help to open the channel and having on its trailing side a face substantially normal to the length of the channel and providedwith a recess, a passage for the delivery of cement to said recess, and a removable cover plate associated with the nozzle overlying the recess and spaced from the unrecessed portion on the face of the nozzle along at least one side of the nozzle thereby to provide a lateral passage through which cement may be extruded for coating one side of the channel.

21. In a channel cementing machine, a nozzle the end portion of which is adapted to be inserted in the channel, said nozzle being provided I with an end facelying transversely of the channel and having an outlet passage delivering to said end face, and a removable cover overlying said outlet passage and provided with a shouldered surface one portion of which is brought into close engagement with the end face of the nozzle and the other portion of which is spaced from said end face thereby to provide a lateral passage for coating at least one side of the channel, said shoulder on the cover defining the upper limit of said passage.

22. In a channel cementing machine, a nozzle adapted to be inserted in the channel of a shoe sole, said nozzle having a concave surface for reception of and contact with the base bed .Of

the channel, a removable cover plate having a correspondingly curved edge, one of said parts be-' ing cut away along the concave surface to provide a curved delivery slot through which cement f may be'extrudedto coat the channel bed, and

an outlet passage within the nozzle leading to said cut-away portion.

23. In a channel-cementing machine, an acutely tapered nozzle provided with an end surface adapted to be positioned substantially normal to the length of the channel, said nozzle having an outlet passage intersecting said end surface, and a removable cover having a surface resting tightly against said end surface over one area and spaced therefrom over another area thereby to form a continuance of the outlet passage which terminates in a delivery opening, one of said coasting surfaces being provided with a shoulder extending transversely of the axis of the nozzle thereby to define an upper limit of the delivery opening between the cover and said end surface along a side of the nozzle adjacent to one side of the channel. I

24 In a cementing machine for shoe parts, an extruding nozzle between which and ashoe part relative movement is set up thereby to apply a coating in an 'elongated stripe along the shoe part, said nozzle being provided with a pluralityof outlet slots extending transversely to the 'direction of relative movement and located behind one another with respect to said direction Whereby cement extruded through the first slot is effective to wet the surface of the shoe part and cement extruded through the second slot applies a superposed coating of the desired thickness.

25; In a channel-cementing machine, an acutely tapered nozzle provided with an end face adapted to be positioned substantially normal to the length of the channel, said nozzle having an outlet passage delivering to said end face and a removable cover coacting with said end face to determine the direction of flow'of cement from said outlet passage, said cover being spaced from the end face along an edge to provide a delivery opening substantially coextensive with one side of the channel, and means for clamping said cover 'on said nozzle.

W'ILBUR L. MACKENZIE.

CERTIFICATE OF CORREC TION Patent No. 2,098,51 November 9, 1957'.

'WILBUR L. MacKENZIE.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, second column, line 17, before the word "delivery" insert lateral; page 5, first column, line 65, for "forward" read rear. The claims now appearing in the patent asnumbers 2o, 2, 1,, 21, 25, 5, 6, 7, 22, 9, 1o, 11, 2h, 12, 15, 1h, l5, l6, l7, l8,and 19, should bear the numbers 2, 5, 5, 6, 7, 8, 9, 10,11, 12-, 15, 11 ,15, l6, l7, l8, 19, 2O, 21, 22, 25,and 2L respectively; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 8th day of February, A, Do 1958.

Henry Van Arsdale (Seal) Acting Commissioner of Patents. 

